-/* Copyright (c) 2008-2012 Da SimGrid Team. All rights reserved. */
+/* Copyright (c) 2008-2014. The SimGrid Team.
+ * All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/time.h>
+#include <sys/mman.h>
+#include <libgen.h>
+#include "simgrid/sg_config.h"
#include "../surf/surf_private.h"
#include "../simix/smx_private.h"
+#include "../xbt/mmalloc/mmprivate.h"
#include "xbt/fifo.h"
#include "mc_private.h"
+#include "xbt/automaton.h"
+#include "xbt/dict.h"
XBT_LOG_NEW_CATEGORY(mc, "All MC categories");
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc,
"Logging specific to MC (global)");
-/* MC global data structures */
+/* Configuration support */
+e_mc_reduce_t mc_reduce_kind = e_mc_reduce_unset;
+
+int _sg_do_model_check = 0;
+int _sg_mc_checkpoint = 0;
+int _sg_mc_sparse_checkpoint = 0;
+int _sg_mc_soft_dirty = 0;
+char *_sg_mc_property_file = NULL;
+int _sg_mc_timeout = 0;
+int _sg_mc_hash = 0;
+int _sg_mc_max_depth = 1000;
+int _sg_mc_visited = 0;
+char *_sg_mc_dot_output_file = NULL;
+int _sg_mc_comms_determinism = 0;
+int _sg_mc_send_determinism = 0;
+int _sg_mc_safety = 0;
+int _sg_mc_liveness = 0;
+
+int user_max_depth_reached = 0;
+
+void _mc_cfg_cb_reduce(const char *name, int pos)
+{
+ if (_sg_cfg_init_status && !_sg_do_model_check) {
+ xbt_die
+ ("You are specifying a reduction strategy after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
+ }
+ char *val = xbt_cfg_get_string(_sg_cfg_set, name);
+ if (!strcasecmp(val, "none")) {
+ mc_reduce_kind = e_mc_reduce_none;
+ } else if (!strcasecmp(val, "dpor")) {
+ mc_reduce_kind = e_mc_reduce_dpor;
+ } else {
+ xbt_die("configuration option %s can only take 'none' or 'dpor' as a value",
+ name);
+ }
+}
+
+void _mc_cfg_cb_checkpoint(const char *name, int pos)
+{
+ if (_sg_cfg_init_status && !_sg_do_model_check) {
+ xbt_die
+ ("You are specifying a checkpointing value after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
+ }
+ _sg_mc_checkpoint = xbt_cfg_get_int(_sg_cfg_set, name);
+}
+
+void _mc_cfg_cb_sparse_checkpoint(const char *name, int pos) {
+ if (_sg_cfg_init_status && !_sg_do_model_check) {
+ xbt_die("You are specifying a checkpointing value after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
+ }
+ _sg_mc_sparse_checkpoint = xbt_cfg_get_boolean(_sg_cfg_set, name);
+}
+
+void _mc_cfg_cb_soft_dirty(const char *name, int pos) {
+ if (_sg_cfg_init_status && !_sg_do_model_check) {
+ xbt_die("You are specifying a soft dirty value after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
+ }
+ _sg_mc_soft_dirty = xbt_cfg_get_boolean(_sg_cfg_set, name);
+}
+
+void _mc_cfg_cb_property(const char *name, int pos)
+{
+ if (_sg_cfg_init_status && !_sg_do_model_check) {
+ xbt_die
+ ("You are specifying a property after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
+ }
+ _sg_mc_property_file = xbt_cfg_get_string(_sg_cfg_set, name);
+}
+void _mc_cfg_cb_timeout(const char *name, int pos)
+{
+ if (_sg_cfg_init_status && !_sg_do_model_check) {
+ xbt_die
+ ("You are specifying a value to enable/disable timeout for wait requests after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
+ }
+ _sg_mc_timeout = xbt_cfg_get_boolean(_sg_cfg_set, name);
+}
+
+void _mc_cfg_cb_hash(const char *name, int pos)
+{
+ if (_sg_cfg_init_status && !_sg_do_model_check) {
+ xbt_die
+ ("You are specifying a value to enable/disable the use of global hash to speedup state comparaison, but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
+ }
+ _sg_mc_hash = xbt_cfg_get_boolean(_sg_cfg_set, name);
+}
+
+void _mc_cfg_cb_max_depth(const char *name, int pos)
+{
+ if (_sg_cfg_init_status && !_sg_do_model_check) {
+ xbt_die
+ ("You are specifying a max depth value after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
+ }
+ _sg_mc_max_depth = xbt_cfg_get_int(_sg_cfg_set, name);
+}
+
+void _mc_cfg_cb_visited(const char *name, int pos)
+{
+ if (_sg_cfg_init_status && !_sg_do_model_check) {
+ xbt_die
+ ("You are specifying a number of stored visited states after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
+ }
+ _sg_mc_visited = xbt_cfg_get_int(_sg_cfg_set, name);
+}
+
+void _mc_cfg_cb_dot_output(const char *name, int pos)
+{
+ if (_sg_cfg_init_status && !_sg_do_model_check) {
+ xbt_die
+ ("You are specifying a file name for a dot output of graph state after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
+ }
+ _sg_mc_dot_output_file = xbt_cfg_get_string(_sg_cfg_set, name);
+}
+
+void _mc_cfg_cb_comms_determinism(const char *name, int pos)
+{
+ if (_sg_cfg_init_status && !_sg_do_model_check) {
+ xbt_die
+ ("You are specifying a value to enable/disable the detection of determinism in the communications schemes after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
+ }
+ _sg_mc_comms_determinism = xbt_cfg_get_boolean(_sg_cfg_set, name);
+}
+
+void _mc_cfg_cb_send_determinism(const char *name, int pos)
+{
+ if (_sg_cfg_init_status && !_sg_do_model_check) {
+ xbt_die
+ ("You are specifying a value to enable/disable the detection of send-determinism in the communications schemes after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
+ }
+ _sg_mc_send_determinism = xbt_cfg_get_boolean(_sg_cfg_set, name);
+}
+
+/* MC global data structures */
mc_state_t mc_current_state = NULL;
char mc_replay_mode = FALSE;
double *mc_time = NULL;
-mc_snapshot_t initial_snapshot = NULL;
-
-/* Safety */
-
-xbt_fifo_t mc_stack_safety_stateful = NULL;
-xbt_fifo_t mc_stack_safety_stateless = NULL;
+__thread mc_comparison_times_t mc_comp_times = NULL;
+__thread double mc_snapshot_comparison_time;
mc_stats_t mc_stats = NULL;
+mc_global_t initial_global_state = NULL;
+xbt_fifo_t mc_stack = NULL;
/* Liveness */
+xbt_automaton_t _mc_property_automaton = NULL;
-mc_stats_pair_t mc_stats_pair = NULL;
-xbt_fifo_t mc_stack_liveness = NULL;
-mc_snapshot_t initial_snapshot_liveness = NULL;
+/* Variables */
+mc_object_info_t mc_libsimgrid_info = NULL;
+mc_object_info_t mc_binary_info = NULL;
-xbt_automaton_t automaton;
+mc_object_info_t mc_object_infos[2] = { NULL, NULL };
-static void MC_init_liveness(xbt_automaton_t a);
-static void MC_assert_pair(int prop);
+size_t mc_object_infos_size = 2;
+/* Dot output */
+FILE *dot_output = NULL;
+const char *colors[13];
-/**
- * \brief Initialize the model-checker data structures
- */
-void MC_init_safety_stateless(void)
-{
- /* Check if MC is already initialized */
- if (initial_snapshot)
- return;
+/******************************* Initialisation of MC *******************************/
+/*********************************************************************************/
- mc_time = xbt_new0(double, simix_process_maxpid);
+static void MC_init_dot_output()
+{ /* FIXME : more colors */
- /* Initialize the data structures that must be persistent across every
- iteration of the model-checker (in RAW memory) */
- MC_SET_RAW_MEM;
+ colors[0] = "blue";
+ colors[1] = "red";
+ colors[2] = "green3";
+ colors[3] = "goldenrod";
+ colors[4] = "brown";
+ colors[5] = "purple";
+ colors[6] = "magenta";
+ colors[7] = "turquoise4";
+ colors[8] = "gray25";
+ colors[9] = "forestgreen";
+ colors[10] = "hotpink";
+ colors[11] = "lightblue";
+ colors[12] = "tan";
- /* Initialize statistics */
- mc_stats = xbt_new0(s_mc_stats_t, 1);
- mc_stats->state_size = 1;
+ dot_output = fopen(_sg_mc_dot_output_file, "w");
- /* Create exploration stack */
- mc_stack_safety_stateless = xbt_fifo_new();
+ if (dot_output == NULL) {
+ perror("Error open dot output file");
+ xbt_abort();
+ }
+
+ fprintf(dot_output,
+ "digraph graphname{\n fixedsize=true; rankdir=TB; ranksep=.25; edge [fontsize=12]; node [fontsize=10, shape=circle,width=.5 ]; graph [resolution=20, fontsize=10];\n");
- MC_UNSET_RAW_MEM;
+}
+
+static void MC_init_debug_info(void)
+{
+ XBT_INFO("Get debug information ...");
- MC_dpor_init();
+ memory_map_t maps = MC_get_memory_map();
- MC_SET_RAW_MEM;
- /* Save the initial state */
- initial_snapshot = xbt_new0(s_mc_snapshot_t, 1);
- MC_take_snapshot(initial_snapshot);
- MC_UNSET_RAW_MEM;
+ /* Get local variables for state equality detection */
+ mc_binary_info = MC_find_object_info(maps, xbt_binary_name, 1);
+ mc_object_infos[0] = mc_binary_info;
+
+ mc_libsimgrid_info = MC_find_object_info(maps, libsimgrid_path, 0);
+ mc_object_infos[1] = mc_libsimgrid_info;
+
+ // Use information of the other objects:
+ MC_post_process_object_info(mc_binary_info);
+ MC_post_process_object_info(mc_libsimgrid_info);
+
+ MC_free_memory_map(maps);
+ XBT_INFO("Get debug information done !");
}
-void MC_init_safety_stateful(void){
-
- /* Check if MC is already initialized */
- if (initial_snapshot)
- return;
+mc_model_checker_t mc_model_checker = NULL;
+
+void MC_init()
+{
+ int raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
mc_time = xbt_new0(double, simix_process_maxpid);
/* Initialize the data structures that must be persistent across every
iteration of the model-checker (in RAW memory) */
- MC_SET_RAW_MEM;
+
+ MC_SET_MC_HEAP;
+
+ mc_model_checker = xbt_new0(s_mc_model_checker_t, 1);
+ mc_model_checker->pages = mc_pages_store_new();
+ mc_model_checker->fd_clear_refs = -1;
+ mc_model_checker->fd_pagemap = -1;
+
+ mc_comp_times = xbt_new0(s_mc_comparison_times_t, 1);
/* Initialize statistics */
mc_stats = xbt_new0(s_mc_stats_t, 1);
mc_stats->state_size = 1;
- /* Create exploration stack */
- mc_stack_safety_stateful = xbt_fifo_new();
+ MC_init_memory_map_info();
+ MC_init_debug_info(); /* FIXME : get debug information only if liveness verification or visited state reduction */
+
+ if ((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0] != '\0'))
+ MC_init_dot_output();
+
+ /* Init parmap */
+ //parmap = xbt_parmap_mc_new(xbt_os_get_numcores(), XBT_PARMAP_DEFAULT);
+
+ MC_SET_STD_HEAP;
+
+ if (_sg_mc_visited > 0 || _sg_mc_liveness) {
+ /* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */
+ MC_ignore_local_variable("e", "*");
+ MC_ignore_local_variable("__ex_cleanup", "*");
+ MC_ignore_local_variable("__ex_mctx_en", "*");
+ MC_ignore_local_variable("__ex_mctx_me", "*");
+ MC_ignore_local_variable("__xbt_ex_ctx_ptr", "*");
+ MC_ignore_local_variable("_log_ev", "*");
+ MC_ignore_local_variable("_throw_ctx", "*");
+ MC_ignore_local_variable("ctx", "*");
+
+ MC_ignore_local_variable("self", "simcall_BODY_mc_snapshot");
+ MC_ignore_local_variable("next_cont"
+ "ext", "smx_ctx_sysv_suspend_serial");
+ MC_ignore_local_variable("i", "smx_ctx_sysv_suspend_serial");
+
+ /* Ignore local variable about time used for tracing */
+ MC_ignore_local_variable("start_time", "*");
+
+ MC_ignore_global_variable("mc_model_checker");
+
+ // Mot of those things could be moved into mc_model_checker:
+ MC_ignore_global_variable("compared_pointers");
+ MC_ignore_global_variable("mc_comp_times");
+ MC_ignore_global_variable("mc_snapshot_comparison_time");
+ MC_ignore_global_variable("mc_time");
+ MC_ignore_global_variable("smpi_current_rank");
+ MC_ignore_global_variable("counter"); /* Static variable used for tracing */
+ MC_ignore_global_variable("maestro_stack_start");
+ MC_ignore_global_variable("maestro_stack_end");
+ MC_ignore_global_variable("smx_total_comms");
+
+ if (MC_is_active()) {
+ MC_ignore_global_variable("mc_diff_info");
+ }
- MC_UNSET_RAW_MEM;
+ MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double));
- MC_dpor_stateful_init();
+ smx_process_t process;
+ xbt_swag_foreach(process, simix_global->process_list) {
+ MC_ignore_heap(&(process->process_hookup),
+ sizeof(process->process_hookup));
+ }
+ }
+ if (raw_mem_set)
+ MC_SET_MC_HEAP;
}
-static void MC_init_liveness(xbt_automaton_t a){
+/******************************* Core of MC *******************************/
+/**************************************************************************/
- XBT_DEBUG("Start init mc");
-
- mc_time = xbt_new0(double, simix_process_maxpid);
+static void MC_modelcheck_comm_determinism_init(void)
+{
- /* Initialize the data structures that must be persistent across every
- iteration of the model-checker (in RAW memory) */
+ int mc_mem_set = (mmalloc_get_current_heap() == mc_heap);
- MC_SET_RAW_MEM;
+ MC_init();
- /* Initialize statistics */
- mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
+ if (!mc_mem_set)
+ MC_SET_MC_HEAP;
+
+ /* Create exploration stack */
+ mc_stack = xbt_fifo_new();
- XBT_DEBUG("Creating stack");
+ MC_SET_STD_HEAP;
- /* Create exploration stack */
- mc_stack_liveness = xbt_fifo_new();
+ MC_pre_modelcheck_comm_determinism();
- MC_UNSET_RAW_MEM;
+ MC_SET_MC_HEAP;
+ initial_global_state = xbt_new0(s_mc_global_t, 1);
+ initial_global_state->snapshot = MC_take_snapshot(0);
+ initial_global_state->initial_communications_pattern_done = 0;
+ initial_global_state->comm_deterministic = 1;
+ initial_global_state->send_deterministic = 1;
+ MC_SET_STD_HEAP;
- automaton = a;
+ MC_modelcheck_comm_determinism();
- MC_ddfs_init();
+ if(mc_mem_set)
+ MC_SET_MC_HEAP;
-
}
-
-void MC_modelcheck(void)
+static void MC_modelcheck_safety_init(void)
{
- MC_init_safety_stateless();
- MC_dpor();
- MC_exit();
+ int mc_mem_set = (mmalloc_get_current_heap() == mc_heap);
+
+ _sg_mc_safety = 1;
+
+ MC_init();
+
+ if (!mc_mem_set)
+ MC_SET_MC_HEAP;
+
+ /* Create exploration stack */
+ mc_stack = xbt_fifo_new();
+
+ MC_SET_STD_HEAP;
+
+ MC_pre_modelcheck_safety();
+
+ MC_SET_MC_HEAP;
+ /* Save the initial state */
+ initial_global_state = xbt_new0(s_mc_global_t, 1);
+ initial_global_state->snapshot = MC_take_snapshot(0);
+ MC_SET_STD_HEAP;
+
+ MC_modelcheck_safety();
+
+ if (mc_mem_set)
+ MC_SET_MC_HEAP;
+
+ xbt_abort();
+ //MC_exit();
}
-void MC_modelcheck_stateful(void)
+static void MC_modelcheck_liveness_init()
{
- MC_init_safety_stateful();
- MC_dpor_stateful();
- MC_exit();
-}
+ int mc_mem_set = (mmalloc_get_current_heap() == mc_heap);
+
+ _sg_mc_liveness = 1;
+
+ MC_init();
+
+ if (!mc_mem_set)
+ MC_SET_MC_HEAP;
+
+ /* Create exploration stack */
+ mc_stack = xbt_fifo_new();
+
+ /* Create the initial state */
+ initial_global_state = xbt_new0(s_mc_global_t, 1);
+
+ MC_SET_STD_HEAP;
+
+ MC_pre_modelcheck_liveness();
+
+ /* We're done */
+ MC_print_statistics(mc_stats);
+ xbt_free(mc_time);
+
+ if (mc_mem_set)
+ MC_SET_MC_HEAP;
-void MC_modelcheck_liveness(xbt_automaton_t a){
- MC_init_liveness(a);
- MC_exit_liveness();
}
-void MC_exit_liveness(void)
+void MC_do_the_modelcheck_for_real()
{
- MC_print_statistics_pairs(mc_stats_pair);
- //xbt_free(mc_time);
- //MC_memory_exit();
- exit(0);
+
+ if (_sg_mc_comms_determinism || _sg_mc_send_determinism) {
+ XBT_INFO("Check communication determinism");
+ MC_modelcheck_comm_determinism_init();
+ } else if (!_sg_mc_property_file || _sg_mc_property_file[0] == '\0') {
+ if (mc_reduce_kind == e_mc_reduce_unset)
+ mc_reduce_kind = e_mc_reduce_dpor;
+ XBT_INFO("Check a safety property");
+ MC_modelcheck_safety_init();
+ } else {
+ if (mc_reduce_kind == e_mc_reduce_unset)
+ mc_reduce_kind = e_mc_reduce_none;
+ XBT_INFO("Check the liveness property %s", _sg_mc_property_file);
+ MC_automaton_load(_sg_mc_property_file);
+ MC_modelcheck_liveness_init();
+ }
}
void MC_exit(void)
{
- MC_print_statistics(mc_stats);
xbt_free(mc_time);
+
MC_memory_exit();
+ //xbt_abort();
+}
+
+int SIMIX_pre_mc_random(smx_simcall_t simcall, int min, int max)
+{
+
+ return simcall->mc_value;
}
int MC_random(int min, int max)
{
- /*FIXME: return mc_current_state->executed_transition->random.value;*/
- return 0;
+ /*FIXME: return mc_current_state->executed_transition->random.value; */
+ return simcall_mc_random(min, max);
}
/**
xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
req = &process->simcall;
if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
- SIMIX_simcall_pre(req, 0);
+ SIMIX_simcall_pre(req, 0);
}
}
}
{
int deadlock = FALSE;
smx_process_t process;
- if(xbt_swag_size(simix_global->process_list)){
+ if (xbt_swag_size(simix_global->process_list)) {
deadlock = TRUE;
- xbt_swag_foreach(process, simix_global->process_list){
- if(process->simcall.call != SIMCALL_NONE
- && MC_request_is_enabled(&process->simcall)){
+ xbt_swag_foreach(process, simix_global->process_list) {
+ if (process->simcall.call != SIMCALL_NONE
+ && MC_request_is_enabled(&process->simcall)) {
deadlock = FALSE;
break;
}
}
/**
- * \brief Re-executes from the initial state all the transitions indicated by
+ * \brief Re-executes from the state at position start all the transitions indicated by
* a given model-checker stack.
* \param stack The stack with the transitions to execute.
-*/
-void MC_replay(xbt_fifo_t stack)
+ * \param start Start index to begin the re-execution.
+ */
+void MC_replay(xbt_fifo_t stack, int start)
{
- int value;
+ int raw_mem = (mmalloc_get_current_heap() == mc_heap);
+
+ int value, i = 1, count = 1;
char *req_str;
smx_simcall_t req = NULL, saved_req = NULL;
- xbt_fifo_item_t item;
+ xbt_fifo_item_t item, start_item;
mc_state_t state;
+ smx_process_t process = NULL;
+ int comm_pattern = 0;
+ smx_action_t current_comm;
XBT_DEBUG("**** Begin Replay ****");
- /* Restore the initial state */
- MC_restore_snapshot(initial_snapshot);
- /* At the moment of taking the snapshot the raw heap was set, so restoring
- * it will set it back again, we have to unset it to continue */
- MC_UNSET_RAW_MEM;
+ if (start == -1) {
+ /* Restore the initial state */
+ MC_restore_snapshot(initial_global_state->snapshot);
+ /* At the moment of taking the snapshot the raw heap was set, so restoring
+ * it will set it back again, we have to unset it to continue */
+ MC_SET_STD_HEAP;
+ }
- /* Traverse the stack from the initial state and re-execute the transitions */
- for (item = xbt_fifo_get_last_item(stack);
+ start_item = xbt_fifo_get_last_item(stack);
+ if (start != -1) {
+ while (i != start) {
+ start_item = xbt_fifo_get_prev_item(start_item);
+ i++;
+ }
+ }
+
+ MC_SET_MC_HEAP;
+
+ if ((mc_reduce_kind == e_mc_reduce_dpor) && !_sg_mc_comms_determinism && !_sg_mc_send_determinism) {
+ xbt_dict_reset(first_enabled_state);
+ xbt_swag_foreach(process, simix_global->process_list) {
+ if (MC_process_is_enabled(process)) {
+ char *key = bprintf("%lu", process->pid);
+ char *data = bprintf("%d", count);
+ xbt_dict_set(first_enabled_state, key, data, NULL);
+ xbt_free(key);
+ }
+ }
+ }
+
+ if (_sg_mc_comms_determinism || _sg_mc_send_determinism) {
+ xbt_dynar_reset(communications_pattern);
+ xbt_dynar_reset(incomplete_communications_pattern);
+ }
+
+ MC_SET_STD_HEAP;
+
+
+ /* Traverse the stack from the state at position start and re-execute the transitions */
+ for (item = start_item;
item != xbt_fifo_get_first_item(stack);
item = xbt_fifo_get_prev_item(item)) {
state = (mc_state_t) xbt_fifo_get_item_content(item);
saved_req = MC_state_get_executed_request(state, &value);
-
- if(saved_req){
+
+ if ((mc_reduce_kind == e_mc_reduce_dpor) && !_sg_mc_comms_determinism && !_sg_mc_send_determinism) {
+ MC_SET_MC_HEAP;
+ char *key = bprintf("%lu", saved_req->issuer->pid);
+ xbt_dict_remove(first_enabled_state, key);
+ xbt_free(key);
+ MC_SET_STD_HEAP;
+ }
+
+ if (saved_req) {
/* because we got a copy of the executed request, we have to fetch the
real one, pointed by the request field of the issuer process */
req = &saved_req->issuer->simcall;
/* Debug information */
- if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
+ if (XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)) {
req_str = MC_request_to_string(req, value);
XBT_DEBUG("Replay: %s (%p)", req_str, state);
xbt_free(req_str);
}
+
+ /* TODO : handle test and testany simcalls */
+ if (_sg_mc_comms_determinism || _sg_mc_send_determinism) {
+ if (req->call == SIMCALL_COMM_ISEND)
+ comm_pattern = 1;
+ else if (req->call == SIMCALL_COMM_IRECV)
+ comm_pattern = 2;
+ else if (req->call == SIMCALL_COMM_WAIT)
+ comm_pattern = 3;
+ else if (req->call == SIMCALL_COMM_WAITANY)
+ comm_pattern = 4;
+ }
+
+ SIMIX_simcall_pre(req, value);
+
+ if (_sg_mc_comms_determinism || _sg_mc_send_determinism) {
+ MC_SET_MC_HEAP;
+ if (comm_pattern == 1 || comm_pattern == 2) {
+ get_comm_pattern(communications_pattern, req, comm_pattern);
+ } else if (comm_pattern == 3 /* || comm_pattern == 4 */ ) {
+ current_comm = simcall_comm_wait__get__comm(req);
+ if (current_comm->comm.refcount == 1) { /* First wait only must be considered */
+ complete_comm_pattern(communications_pattern, current_comm);
+ }
+ } else if (comm_pattern == 4 /* || comm_pattern == 4 */ ) {
+ current_comm =
+ xbt_dynar_get_as(simcall_comm_waitany__get__comms(req), value,
+ smx_action_t);
+ if (current_comm->comm.refcount == 1) { /* First wait only must be considered */
+ complete_comm_pattern(communications_pattern, current_comm);
+ }
+ }
+ MC_SET_STD_HEAP;
+ comm_pattern = 0;
+ }
+
+
+ MC_wait_for_requests();
+
+ count++;
+
+ if ((mc_reduce_kind == e_mc_reduce_dpor) && !_sg_mc_comms_determinism && !_sg_mc_send_determinism) {
+ MC_SET_MC_HEAP;
+ /* Insert in dict all enabled processes */
+ xbt_swag_foreach(process, simix_global->process_list) {
+ if (MC_process_is_enabled(process) ) {
+ char *key = bprintf("%lu", process->pid);
+ if (xbt_dict_get_or_null(first_enabled_state, key) == NULL) {
+ char *data = bprintf("%d", count);
+ xbt_dict_set(first_enabled_state, key, data, NULL);
+ }
+ xbt_free(key);
+ }
+ }
+ MC_SET_STD_HEAP;
+ }
}
-
- SIMIX_simcall_pre(req, value);
- MC_wait_for_requests();
-
+
/* Update statistics */
mc_stats->visited_states++;
mc_stats->executed_transitions++;
+
}
+
XBT_DEBUG("**** End Replay ****");
+
+ if (raw_mem)
+ MC_SET_MC_HEAP;
+ else
+ MC_SET_STD_HEAP;
+
+
}
void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
{
+
+ initial_global_state->raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
+
int value;
char *req_str;
smx_simcall_t req = NULL, saved_req = NULL;
xbt_fifo_item_t item;
mc_state_t state;
- mc_pair_stateless_t pair;
+ mc_pair_t pair;
int depth = 1;
XBT_DEBUG("**** Begin Replay ****");
/* Restore the initial state */
- MC_restore_snapshot(initial_snapshot_liveness);
+ MC_restore_snapshot(initial_global_state->snapshot);
+
/* At the moment of taking the snapshot the raw heap was set, so restoring
* it will set it back again, we have to unset it to continue */
- MC_UNSET_RAW_MEM;
+ if (!initial_global_state->raw_mem_set)
+ MC_SET_STD_HEAP;
- if(all_stack){
+ if (all_stack) {
item = xbt_fifo_get_last_item(stack);
- while(depth <= xbt_fifo_size(stack)){
+ while (depth <= xbt_fifo_size(stack)) {
- pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
+ pair = (mc_pair_t) xbt_fifo_get_item_content(item);
state = (mc_state_t) pair->graph_state;
- if(pair->requests > 0){
-
- saved_req = MC_state_get_executed_request(state, &value);
- //XBT_DEBUG("SavedReq->call %u", saved_req->call);
-
- if(saved_req != NULL){
- /* because we got a copy of the executed request, we have to fetch the
- real one, pointed by the request field of the issuer process */
- req = &saved_req->issuer->simcall;
- //XBT_DEBUG("Req->call %u", req->call);
-
- /* Debug information */
- if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
- req_str = MC_request_to_string(req, value);
- XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
- xbt_free(req_str);
- }
-
- }
-
- SIMIX_simcall_pre(req, value);
- MC_wait_for_requests();
+ if (pair->requests > 0) {
+
+ saved_req = MC_state_get_executed_request(state, &value);
+ //XBT_DEBUG("SavedReq->call %u", saved_req->call);
+
+ if (saved_req != NULL) {
+ /* because we got a copy of the executed request, we have to fetch the
+ real one, pointed by the request field of the issuer process */
+ req = &saved_req->issuer->simcall;
+ //XBT_DEBUG("Req->call %u", req->call);
+
+ /* Debug information */
+ if (XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)) {
+ req_str = MC_request_to_string(req, value);
+ XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
+ xbt_free(req_str);
+ }
+
+ }
+
+ SIMIX_simcall_pre(req, value);
+ MC_wait_for_requests();
}
depth++;
-
+
/* Update statistics */
- mc_stats_pair->visited_pairs++;
+ mc_stats->visited_pairs++;
+ mc_stats->executed_transitions++;
item = xbt_fifo_get_prev_item(item);
}
- }else{
+ } else {
/* Traverse the stack from the initial state and re-execute the transitions */
for (item = xbt_fifo_get_last_item(stack);
- item != xbt_fifo_get_first_item(stack);
- item = xbt_fifo_get_prev_item(item)) {
+ item != xbt_fifo_get_first_item(stack);
+ item = xbt_fifo_get_prev_item(item)) {
- pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
+ pair = (mc_pair_t) xbt_fifo_get_item_content(item);
state = (mc_state_t) pair->graph_state;
- if(pair->requests > 0){
-
- saved_req = MC_state_get_executed_request(state, &value);
- //XBT_DEBUG("SavedReq->call %u", saved_req->call);
-
- if(saved_req != NULL){
- /* because we got a copy of the executed request, we have to fetch the
- real one, pointed by the request field of the issuer process */
- req = &saved_req->issuer->simcall;
- //XBT_DEBUG("Req->call %u", req->call);
-
- /* Debug information */
- if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
- req_str = MC_request_to_string(req, value);
- XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
- xbt_free(req_str);
- }
-
- }
-
- SIMIX_simcall_pre(req, value);
- MC_wait_for_requests();
+ if (pair->requests > 0) {
+
+ saved_req = MC_state_get_executed_request(state, &value);
+ //XBT_DEBUG("SavedReq->call %u", saved_req->call);
+
+ if (saved_req != NULL) {
+ /* because we got a copy of the executed request, we have to fetch the
+ real one, pointed by the request field of the issuer process */
+ req = &saved_req->issuer->simcall;
+ //XBT_DEBUG("Req->call %u", req->call);
+
+ /* Debug information */
+ if (XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)) {
+ req_str = MC_request_to_string(req, value);
+ XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
+ xbt_free(req_str);
+ }
+
+ }
+
+ SIMIX_simcall_pre(req, value);
+ MC_wait_for_requests();
}
depth++;
-
+
/* Update statistics */
- mc_stats_pair->visited_pairs++;
+ mc_stats->visited_pairs++;
+ mc_stats->executed_transitions++;
}
- }
+ }
XBT_DEBUG("**** End Replay ****");
-}
+ if (initial_global_state->raw_mem_set)
+ MC_SET_MC_HEAP;
+ else
+ MC_SET_STD_HEAP;
+
+}
/**
* \brief Dumps the contents of a model-checker's stack and shows the actual
* execution trace
* \param stack The stack to dump
-*/
-void MC_dump_stack_safety_stateless(xbt_fifo_t stack)
+ */
+void MC_dump_stack_safety(xbt_fifo_t stack)
{
- mc_state_t state;
- MC_show_stack_safety_stateless(stack);
+ int raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
+
+ MC_show_stack_safety(stack);
+
+ if (!_sg_mc_checkpoint) {
+
+ mc_state_t state;
+
+ MC_SET_MC_HEAP;
+ while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
+ MC_state_delete(state);
+ MC_SET_STD_HEAP;
+
+ }
+
+ if (raw_mem_set)
+ MC_SET_MC_HEAP;
+ else
+ MC_SET_STD_HEAP;
- MC_SET_RAW_MEM;
- while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
- MC_state_delete(state);
- MC_UNSET_RAW_MEM;
}
-void MC_show_stack_safety_stateless(xbt_fifo_t stack)
+void MC_show_stack_safety(xbt_fifo_t stack)
{
+
+ int raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
+
+ MC_SET_MC_HEAP;
+
int value;
mc_state_t state;
xbt_fifo_item_t item;
smx_simcall_t req;
char *req_str = NULL;
-
+
for (item = xbt_fifo_get_last_item(stack);
(item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
: (NULL)); item = xbt_fifo_get_prev_item(item)) {
req = MC_state_get_executed_request(state, &value);
- if(req){
+ if (req) {
req_str = MC_request_to_string(req, value);
XBT_INFO("%s", req_str);
xbt_free(req_str);
}
}
-}
-void MC_show_deadlock(smx_simcall_t req)
-{
- /*char *req_str = NULL;*/
- XBT_INFO("**************************");
- XBT_INFO("*** DEAD-LOCK DETECTED ***");
- XBT_INFO("**************************");
- XBT_INFO("Locked request:");
- /*req_str = MC_request_to_string(req);
- XBT_INFO("%s", req_str);
- xbt_free(req_str);*/
- XBT_INFO("Counter-example execution trace:");
- MC_dump_stack_safety_stateless(mc_stack_safety_stateless);
+ if (!raw_mem_set)
+ MC_SET_STD_HEAP;
}
-void MC_show_deadlock_stateful(smx_simcall_t req)
+void MC_show_deadlock(smx_simcall_t req)
{
- /*char *req_str = NULL;*/
+ /*char *req_str = NULL; */
XBT_INFO("**************************");
XBT_INFO("*** DEAD-LOCK DETECTED ***");
XBT_INFO("**************************");
XBT_INFO("Locked request:");
/*req_str = MC_request_to_string(req);
- XBT_INFO("%s", req_str);
- xbt_free(req_str);*/
+ XBT_INFO("%s", req_str);
+ xbt_free(req_str); */
XBT_INFO("Counter-example execution trace:");
- MC_show_stack_safety_stateful(mc_stack_safety_stateful);
-}
-
-void MC_dump_stack_safety_stateful(xbt_fifo_t stack)
-{
- //mc_state_ws_t state;
-
- MC_show_stack_safety_stateful(stack);
-
- /*MC_SET_RAW_MEM;
- while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
- MC_state_delete(state);
- MC_UNSET_RAW_MEM;*/
+ MC_dump_stack_safety(mc_stack);
+ MC_print_statistics(mc_stats);
}
-void MC_show_stack_safety_stateful(xbt_fifo_t stack)
+void MC_show_stack_liveness(xbt_fifo_t stack)
{
int value;
- mc_state_ws_t state;
+ mc_pair_t pair;
xbt_fifo_item_t item;
smx_simcall_t req;
char *req_str = NULL;
-
- for (item = xbt_fifo_get_last_item(stack);
- (item ? (state = (mc_state_ws_t) (xbt_fifo_get_item_content(item)))
- : (NULL)); item = xbt_fifo_get_prev_item(item)) {
- req = MC_state_get_executed_request(state->graph_state, &value);
- if(req){
- req_str = MC_request_to_string(req, value);
- XBT_INFO("%s", req_str);
- xbt_free(req_str);
- }
- }
-}
-
-void MC_show_stack_liveness(xbt_fifo_t stack){
- int value;
- mc_pair_stateless_t pair;
- xbt_fifo_item_t item;
- smx_simcall_t req;
- char *req_str = NULL;
-
for (item = xbt_fifo_get_last_item(stack);
- (item ? (pair = (mc_pair_stateless_t) (xbt_fifo_get_item_content(item)))
+ (item ? (pair = (mc_pair_t) (xbt_fifo_get_item_content(item)))
: (NULL)); item = xbt_fifo_get_prev_item(item)) {
req = MC_state_get_executed_request(pair->graph_state, &value);
- if(req){
- if(pair->requests>0){
- req_str = MC_request_to_string(req, value);
- XBT_INFO("%s", req_str);
- xbt_free(req_str);
- }else{
- XBT_INFO("End of system requests but evolution in Büchi automaton");
+ if (req) {
+ if (pair->requests > 0) {
+ req_str = MC_request_to_string(req, value);
+ XBT_INFO("%s", req_str);
+ xbt_free(req_str);
+ } else {
+ XBT_INFO("End of system requests but evolution in Büchi automaton");
}
}
}
}
-void MC_dump_stack_liveness(xbt_fifo_t stack){
- mc_pair_stateless_t pair;
+void MC_dump_stack_liveness(xbt_fifo_t stack)
+{
+
+ int raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
+
+ mc_pair_t pair;
+
+ MC_SET_MC_HEAP;
+ while ((pair = (mc_pair_t) xbt_fifo_pop(stack)) != NULL)
+ MC_pair_delete(pair);
+ MC_SET_STD_HEAP;
+
+ if (raw_mem_set)
+ MC_SET_MC_HEAP;
- MC_SET_RAW_MEM;
- while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL)
- MC_pair_stateless_delete(pair);
- MC_UNSET_RAW_MEM;
}
void MC_print_statistics(mc_stats_t stats)
{
- //XBT_INFO("State space size ~= %lu", stats->state_size);
- XBT_INFO("Expanded states = %lu", stats->expanded_states);
- XBT_INFO("Visited states = %lu", stats->visited_states);
+ if (stats->expanded_pairs == 0) {
+ XBT_INFO("Expanded states = %lu", stats->expanded_states);
+ XBT_INFO("Visited states = %lu", stats->visited_states);
+ } else {
+ XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
+ XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
+ }
XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
- XBT_INFO("Expanded / Visited = %lf",
- (double) stats->visited_states / stats->expanded_states);
- /*XBT_INFO("Exploration coverage = %lf",
- (double)stats->expanded_states / stats->state_size); */
-}
-
-void MC_print_statistics_pairs(mc_stats_pair_t stats)
-{
- XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
- XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
- //XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
- XBT_INFO("Expanded / Visited = %lf",
- (double) stats->visited_pairs / stats->expanded_pairs);
- /*XBT_INFO("Exploration coverage = %lf",
- (double)stats->expanded_states / stats->state_size); */
+ MC_SET_MC_HEAP;
+ if ((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0] != '\0')) {
+ fprintf(dot_output, "}\n");
+ fclose(dot_output);
+ }
+ if (initial_global_state != NULL) {
+ if (_sg_mc_comms_determinism)
+ XBT_INFO("Communication-deterministic : %s",
+ !initial_global_state->comm_deterministic ? "No" : "Yes");
+ if (_sg_mc_send_determinism)
+ XBT_INFO("Send-deterministic : %s",
+ !initial_global_state->send_deterministic ? "No" : "Yes");
+ }
+ MC_SET_STD_HEAP;
}
void MC_assert(int prop)
{
- if (MC_IS_ENABLED && !prop){
+ if (MC_is_active() && !prop) {
XBT_INFO("**************************");
XBT_INFO("*** PROPERTY NOT VALID ***");
XBT_INFO("**************************");
XBT_INFO("Counter-example execution trace:");
- MC_dump_stack_safety_stateless(mc_stack_safety_stateless);
+ MC_dump_stack_safety(mc_stack);
MC_print_statistics(mc_stats);
xbt_abort();
}
}
-void MC_assert_stateful(int prop)
+void MC_cut(void)
{
- if (MC_IS_ENABLED && !prop) {
- XBT_INFO("**************************");
- XBT_INFO("*** PROPERTY NOT VALID ***");
- XBT_INFO("**************************");
- XBT_INFO("Counter-example execution trace:");
- MC_dump_stack_safety_stateful(mc_stack_safety_stateful);
- MC_print_statistics(mc_stats);
- xbt_abort();
- }
-}
-
-
-static void MC_assert_pair(int prop){
- if (MC_IS_ENABLED && !prop) {
- XBT_INFO("**************************");
- XBT_INFO("*** PROPERTY NOT VALID ***");
- XBT_INFO("**************************");
- //XBT_INFO("Counter-example execution trace:");
- MC_show_stack_liveness(mc_stack_liveness);
- //MC_dump_snapshot_stack(mc_snapshot_stack);
- MC_print_statistics_pairs(mc_stats_pair);
- xbt_abort();
- }
+ user_max_depth_reached = 1;
}
void MC_process_clock_add(smx_process_t process, double amount)
double MC_process_clock_get(smx_process_t process)
{
- if(mc_time)
- return mc_time[process->pid];
- else
+ if (mc_time) {
+ if (process != NULL)
+ return mc_time[process->pid];
+ else
+ return -1;
+ } else {
return 0;
+ }
}
-void MC_diff(void){
-
- mc_snapshot_t sn = xbt_new0(s_mc_snapshot_t, 1);
- MC_take_snapshot_liveness(sn);
-
- int i;
-
- XBT_INFO("Number of regions : %u", sn->num_reg);
-
- for(i=0; i<sn->num_reg; i++){
-
- switch(sn->regions[i]->type){
- case 0: /* heap */
- XBT_INFO("Size of heap : %zu", sn->regions[i]->size);
- mmalloc_display_info_heap(sn->regions[i]->data);
- break;
- case 1 : /* libsimgrid */
- XBT_INFO("Size of libsimgrid : %zu", sn->regions[i]->size);
- break;
- case 2 : /* data program */
- XBT_INFO("Size of data program : %zu", sn->regions[i]->size);
- break;
- case 3 : /* stack */
- XBT_INFO("Size of stack : %zu", sn->regions[i]->size);
- XBT_INFO("Start addr of stack : %p", sn->regions[i]->start_addr);
- break;
- }
+void MC_automaton_load(const char *file)
+{
- }
+ int raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
+
+ MC_SET_MC_HEAP;
+
+ if (_mc_property_automaton == NULL)
+ _mc_property_automaton = xbt_automaton_new();
+
+ xbt_automaton_load(_mc_property_automaton, file);
+
+ MC_SET_STD_HEAP;
+
+ if (raw_mem_set)
+ MC_SET_MC_HEAP;
+
+}
+
+void MC_automaton_new_propositional_symbol(const char *id, void *fct)
+{
+
+ int raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
+
+ MC_SET_MC_HEAP;
+
+ if (_mc_property_automaton == NULL)
+ _mc_property_automaton = xbt_automaton_new();
+
+ xbt_automaton_propositional_symbol_new(_mc_property_automaton, id, fct);
+
+ MC_SET_STD_HEAP;
+
+ if (raw_mem_set)
+ MC_SET_MC_HEAP;
}
